Latch-lock.



' No. 854,847. v i PATENTED MAY 28, 1907.

I 77 l] 1l I l l? V E." SGHMITT. LATGH, Loox.

APPLICATION I'ILBD JULY 0, 1906.

a sums-SHEET z.

.. g1 mmm: s@

No. 854,847. y PATENTED MAY 2s. 1907,

H. SGHMITT.

LATCH LOCK.

APrLIoA'rIoN FILED JULYo. 100e.

8 SHEETS-SHEET 8.

vHENRY SCHMITT, oF CHICAGO, LLINo'Is'.

` L AToHLook. 1 l. y

I y Specification of Letters Patent.- Appuat'ion-ilea July's. 1906. seria N o. 325.354.

To all whom it may'concen' l Be it known that 1, HENRY SCHMITT, a itizen of the United States, and residing at 181 ATwenty-eighth Place, in the city of Chicago,

county of Cook, and State 'of Illinois, have invented a new and useful Improvement in Latch-Locks, of which the following'is a specification.

` one cylindrical hole in whic My invention relates to thatvclass of'locks commonly known as door locks and in which the knob. to be operated on each side of thel door is an essential part.

The bject of my invention is to provide a latch lockwhich can belet into the body of the door and secured therein b the boring of the l'ock is forced into position, by-the boring of a cylindrical hole for the knob s indle and one or more small holesl to hold t e knob plates, to thereby reduce .the labor and skill required to fit the ordinary looks in the doors to reduce I prevent the weakening'of the door in the tions and illustrated `in .the .amount ofwood required Ayto be removed from the door to 1a minimum and thereby part where thelock is inserted and' where its strength should be the, reatest; to combine J'the utility of a latch an` alock to be used as one or the other at-pleasure, and to simplify and cheapen the manufacture of vdojor fasten` in s `of the class described.

he manner in which I accomplishm object is described in the following specificathe accompanying drawingsin which:

Figure 1 is a central section on line 1`1 Fig. 5. The knobs being slightly turned.

' Fig. 2 is a central section on line 1-1 Fig. 5

of the outside door-knob, door plate, and

' part ofthe spindle. Fig. 3 is a cross section on the line- 3.-?, Fig. 1'. e Fig. L1 is ya cross section-on the line 4 4 Fig. 1. tionon line 5 5 Fig. 1. Fig. 6 is the same as Fig. 5. except that the latch isl ldrawn in.'

Fig. Z is a rear end elevation of the' part shown in` Fig. 6,- Fig.l 8 is a rear end elevation o f the part of the-casingformingthecover; Fig.. 9 1s a cross section on the line 9-9' Fig. 5; Fig. 10 is a cross section on' `the line 10-10 Fig. 5; Figs. 11 and 12 are rface and side elevations of the hub Fig. 13 is a side elevation of the 'outside knob showin `theoutside end yof the lock. lug and the ey slot therein;

` Fig. 14 is a p an view of the lock in the interior of the outside knob; the cap ofthe knob being removed; Fig. 1'5 is a section on line 15-.15 Fig. 14; Fig. 16 is a section on line Fig. 5 is a 'sec-f 17--17"Fig.` 16; Fig.'18 is fthe same sectional view as Fig. 17 showing the key in position in the lock Fig. 19 is an enlarged detail view of one of thelock tumblers shown inthe face `and side positions.y

Patented May 28, '1907.

16-"-16`"=Fig. 14'; Fig. 17 is asection online l In the drawing, thesame reference letters@ v andfigures have reference to thefsame parts inall thegures.

In the drawin s A designates the stile orv that part of the oor in'which the door lock" l is fitted, the thickness varying with the size of the door. A cylindrical holeA-l is bored in the center of the thickness ofthe door and horizontally to a depth and of .a diameter adaptedv to allow the latch oase to be easily iplressed in and driven' tight home so the face ts firmly into the door and iiush therewith.

At right angles tothe hole A-.l a' smallerA A-2 is bored through the door passing hori-y zontally through the central line of the hole tion .to' permit the passage and rotation of the spindle 'passing through-the case adapted to support the door knobs.. TWO screw holes `A3 are made for the purpose ofsecuring A--L This hole is adapted in size and loca-v the outside knob plate by screws affixed therein from the inside of the door, thereby preventing the removal ofthe outside knob as hereinafter described. These views illus-- trate the small amount 'of wood removed) 'from the door and the ease and rapidity by" which my door, which is the main object. of my invention. Y

latch lock can be aiXed inv the ,9C

`The case B wbich'forms the body of my device is cylindrical, a longitudinal 'cyllnder j .as shown 1n the same figures, .and when' pressed togetherx the cover is forced forward and the projections B-- are forced intd the' `indents and thereby -the cover is held 1n posltion on the main body. The parts B-.l and B'-2 are secured together by a screw B-.8 which extends through the cover and 1s adapted vin'diameter and length to .the size of screwed into the main body. Across the cention B-9 extends with apertures therein adapted to allow the tail of the latch bolt,

and the draw bar hereinafter described to pass through. A square aperture B-10 in the face plate of the main body is adapted to support .the head of a latch bolt. Transversely through the main body and cover are apertures B-11 adapted to sup ort a hub. Supported in the case is a latch bo t D having a beveled head D-l adapted to slidein the a erture B-lO and a tail D-2 adapted to s ide through one of the apertures in the partitions B-9. Extending transversely through the end of the tail is a stop pin D-3 adapted to engage the partition B-Q and to thereby limit the outward movement of the latc bolt in the case. Supported on the tail of the bolt and compressed between the head of the bolt and the partition in the case, is a coiled spring D-4. Aflixed in the tail near the head of the bolt is a projecting pin D-5. Within the case and journaled in the a ertures B-11 is a hub D- shown in .detail in Figs. 11 and 12. Thishub is constructed with double flanges D-7. Secured transversely in two of thesel flanges is a' crank pin D-B. Hooked onto this pin isa flat draw bar D-9. In the other end of this bar isin aperture by which it is connected to the projecting pin D-5 near the head of the bolt. This bar passes through an aperture in the partition in the case and is adapted b the movement ofthe hub to draw the head ofthe bolt within the face of the case. Through the center of the hub is a square aperture D-lO adapted for the passa e of a spindle. The iianges D-7 have shoul ers D-ll and D-12 which are adapted to engage the screw B S and to therebylimi't the rotative movement of the hub, as shown in Figs. 5, 6.

Extending through the aperture A-Z in the door and through the hub D- is a spindle E having threaded holes E-l by which a knob F is secured by screws E-3 in the ordinary way. The inside plate F-l has a deep bearing surface F-2 and enlarged flange F 3 and screw holes F-4 as shown in Figs. 1 andv 3. The outer part of the spindle is provided with a stop ring E-6 secured therein by a pin E-7 as shown in Fig. 1 this ring is adapted to abut against the hub when the inside knob is attached to the spindle and thereby preventing any lateral movement of the spindle in the hub. The outside door knob plate `G is secured to the door by screws Gr1 which extend through the inside plate and enter the threaded holes (ir-2 in the plate G. This plate has a large central hole G-3 adapted to admit the end of the knob and has a recess G-4 adapted to permit the movement of a bearing ring G-5 `between the plate and the door, and an out.-

side recess Ght adapted for an outside bearing for the knob. Supported in this plate is an outside knob II, the barrel lI-l of this knob has a threaded end H-2 adapted te extend through the center hole in the plaie which is engaged by the shoulder H43. (ln thethreaded end of the knob a ring Crm-5 is secured, this ring is adapted to iit in the recess G-4 and together with the outside (.l-ii form a bearing in which the knob is secured and free to be revolved. When adjusted on the knob this ring is secured by a dowel pin H-4 as shown in Figs. 1 and 2. Extending through the longitudinal center of the barrel H-l of the knob is an aperture II-5, in cross section this is square as shown in Fig. 1. Slidably supported in this aperture is a sq u are sleeve H- adapted to slide on and oll`1he end E-S of the spindle E and to forni a telescopic connection between the knob and the spindle as shown in Figs. 1 and 2. Near the end of this sleeve and extending transversely therethrough is a crank pin II7. Pivotally attached to this pin is a connecting rod II-S. This rod is attached at the other end to a crank pin ailixed in the end of a rotatabh` plug in a lock J whereby said sleeve is ineved into and out of connection with the spindle.

'This lock J is secured in the head of the knob whichis adapted to hold it in a cylinder ll-l and is covered by a cap H-l() allixed in a check H-11 in the outside edge li-12 el' the knob. The body of the lock J is secured through the fianges J--1 to the base II-13 of the interior of the knob by screws J-2 as shown in Figs. 1, 2, 14 and 15. One end J-3 of this lock is square and forms a right angle to the base of the knob and is parallel with one side of the square aperture `Il l') in the barrel H-l ofthe knob as shown i'n Figs. 1, 2 and 14. The other end J-4 is adapted to it the curve of the knob. Extending through the body of the lock J is a cylinder J-, the longitudinal center of this cylinder forms a right angle with the center line ollthe sleeve. In thiscylinder is a rotatable plug J--G having a longitudinal key slot J--7 as shown in Figs. 13, 17 and 18. The end J-S of this plug extends through the side of' the knob as shown in Figs. 13, 17 and 1S and forms the entrance for the key. The other end J-Q projects slightly beyond the end of the lock. In this end of the plug, within the cylinder is an annular channel J-10. Extending through the body of the lock and projecting into this channel is a pin J-I] adapted to hold the plug in position in the cylinder as shown in section in Figs. 17 and 18. Secured in and projecting from the end of 'the plug is a crank pin J-12. On this pin one end of the connecting rod II-S is secured. In the central part of this plug is a transverse slot J-13 as shown in Fig. 16. Slidably adjusted in this slot are a series el' tumblers J 14 shown in Figs. 1G, 17 and 15, and in detail in Fig. 19. The heads J-15 ol' IOO IOS

these tumblersV are adapted to fit. the Width of the slot While the body part J-16 is reduced in thickness to permit the passage of the key as shown in Figs. 16, 17, 18 and 19. Dowel pins J-17 supported transversely in the plug project into the slot as showny in Fig. 16 and are thereby adapted to engage the ends of tumblers holding them in a slidable position, and afford a bearing for the back of the key as showndn Figs. 17 and-18. In the transverse slots J-18 in the top of the lock J and restin on the head of each tumbler is the' free en of a spring J-19, the other end of each of said springs is secured by a plate J-ZO on the flange of the lock byl a screw J`21 as shown in Figs. 1, 2, 14, 15 and 16. Thesesprings press the bottom ends of the tumblersinto a lon itudinal slot J'-22 in the bottom of lthe cy inder and thereby lock the plug to the body of the lock; The insertion of fa proper key throu h the side of knob into the plug engages the eads of the tumblers, lifts the tumblers out of the slot in the cylinder and permits the plug to be' rotated bythe key, "and the connectmg rod and sleevey be thereby moved into or out ofy f engagement with the spindle. A longitudinal being an integral part of one member of said case; a spring pressed latch bolt slidably supported in said case; a hub journaled in said case, said hub having flanges and a crank pin extending therethrough, said anges being.

adapted to engage said screw in said case and to'thereby limit the rotary movement of said hub.; a draw bar pivotally secured to said crank pin and'to the head of said latch bolt; a spindle extending through said lhub, said spindle being' provided-,With a stop adapted to limit the lateral movement of said spindle insaid hub; a knob secured to said spindle and a knob plate secured on a door in which said case is inserted; an outside knob plate secured to said doorand a knob revolubly secured in said plate; an angularsleeve slidably supported in said knob adapted to be moved f into and out of engagement withsaid spindle; a cylinder locksecured inside said knob,

theaxis of said lock beingxat right angles to the axis of said spindle, t e cylinder ofsaid lock having longitudinal slots; a plug revolubly secured in said cylinder, said plug havinga longitudinal key way and a transverse tum? b ler slot, one end`of .said plug extending through an aperture in the side of said knob,

the other end having a crank in; a series of spring pressed tumblers slida ly supported in said tumbler slot in said plug; a connecting rod pivotally attached to said crank pin and to said sleeve; being adapted to be operated by a key inserted in saidy lock through the side of said knob and to thereby move said sleeve into and out of engagement with said spindle. i

2. In a latch lock of the kind described,

the combination consisting of a case in two parts insertible in a door; a spring pressed latch bolt slidable in said case a anged hub journaled in said case; a draw bar attached` to said flanges and to said latch bolt; a spindle` inserted in said hub extending through said door; an inside knob secured to saidv spindle an outside knob revolubly secured to the out side of said door; a slidable sleeve in said knob adapted to be moved into engagement with said spindle; a cylinder lock secured inside said knob the axis of said lock being at right angles to the axis of said spindle; a plug revolubly secured in said lock extending through the side of said knob, said plug having a longitudinal key'way and tumbler slot;

one ,or more tumblers slidably supportedin vsaidplug; means attachedto said plug and to saidv sleeve connecting said plug and sleeve adapted to move said sleeve into and out of engagement With said spindle when said plug i is rotated; being ada ted to be operated by-a key inserted in said ock through the side of IOO e said knob and to thereby move said sleeve into and out of engagement with said spindle. 3. In a ylatch lock of the kind described,

.the combination consistingof a case insertible in a door; a spring ressed latch bolt slidable in said case; a hu journaled in said case; means for ,connectingl said hub and bolt; a spindle extendin through said hub and door; a knob revoluly secured to said door; asleeve slidablyi supported in said knob a cylinder lock Ihaving a central plug revolui bly therein whose axis is lat right angles to l'io the axis of said spindle, one end of said plug registering with an aperture in the sideof -said knob and having a longitudinal keyway;

means attached to the other end of said'plug and to said sleeve adapted to move said sleeve into/and out of engagement with said spindlewhen said glug is rotated; being adapted to be operate by a key inserted in said lock throughfthe sideofsaid knob and topl'thereby ymove said sleeve tinto and out of-ngageinent.

with said s indle.

4.- In a atch lock of the kind described; the combination consisting/of a case inserti-Q ble in adoor; a latch. boltfslidable therein;

Ia hub journaled inv said case means connecting said hub and latch bolt; a spindle supported in said hub; means for rotating said spindle on the inside of the door; an outside knob adapted to be revolubly secured on the Outside of the door; a slidable sleeve in said knob adapted to be moved into and out of engagement with said spindle; a cylinder lock secured in said knob the axis of said lock being at ri ht angles to the axis of said sleeve and spind e; a rotatable plug in said lock forming the axis thereof and having a key hole in line with a key hole in the side of said knob; means connecting said plug With said sleeve, adapted to be operated by a key inserted in said lock through the side of said knob and to thereby move said sleeve into and out of engagement with said spindle.

5. In a latch lock of the kind described the combination of a case; a spring pressed bolt slidably supported therein 5 a hub in said case means connecting said hub and bolt a spindle secured in said hub an Outside knob adapted to be revolubly secured to a door; means supported in said knob adapted to be connected. with a lockmechanism in said knob and: to be moved into and out of engagement with said spindle by the movement of said lock mechanism; a lock in said knob the axis of the lock being secured at right .angles to the axis of said spindle, belng adapted to be Operated by a key inserted in sai lock through the side of said knob and to thereby move said sleeve into and out of engagement with said spindle,

6. In a door lock the combination of a case containing a bolt and hub, and a spindlesupported in said hub; with a door knob adapted to be revolubly secured to a door; adjustable means contained in said knob and attached to a lock therein ada ted to be connected and disconnect-ed Wit said spindle; the axis of said lock in said knob being at right angles to the axis of said spindle, said lock being adapted to be operated by a key inserted through the side of said knob.

7. The combination with a door lock havin a bolt and a hub adapted to operate saidV bo t of a knob adapted to be revolubly secured to a door, and a lock in said knob the axis of the lock being secured at right angles to the axis of the hub, said lock in said knob being adapted to be Operated through an aperture in the side of said knob means for connecting said lock in said knob with the hub in said door lock, said means belng adapted to be moved into and out of engagement with said hub by the operation o said lock in said knob.

8. The combination With a door bolt; of a knob adapted to be revolubly connected with said door bolt; means for making said connection between said bolt and knob; means in said knob adapted to be connected with a lock inisaid knob and to be moved by the Op eration of said lock into and out of engage ment with the mechanism of said door bolt and to operate the said mechanism; a lock in said knob the axis of the lock being secured at right angles to the axis of the mechn anism in said door bolt, said lock of said knob being operated through the side of said knob.

` HENRY SCHMITT.

.Witnesses JOSEPH STAAB, THOMAS J. MORGAN. 

